Navigating the "tree" of language symbols that Barbeque internally tracks

[V4G4X]

Take the following win-bar:

Internally barbeque must be maintaining a tree for this.
Does anyone know of any plugins that provide functionality to quickly navigate such trees?

This is a nascent idea I just got, it could be useless. But imagine keymaps to quickly jump one level UP in this tree.
Similarly, a pop-out window that lists all you could jump DOWN to from a particular level.

I can imagine this would simplify navigating large functions.

Thoughts or references are welcome.

[V4G4X]

Nvm I found hedyhli/outline.nvim. That works as I thought it would.